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AlmazikHX
@AlmazikHX
July 2022
2
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|x+3|+|x-4|<=9
Помогите
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sedinalana
Verified answer
1)x<-3
-x-3-x+4≤9
-2x≤9-1
-2x≤8
x≥-4
-4≤x<-3
2)-3≤x≤4
x+3-x+4≤9
0≤9-7
0≤2
-3≤x≤4
3)x>4
x+3+x-4≤9
2x≤9+1
2x≤10
x≤5
4<x≤5
x∈[-4;5]
1 votes
Thanks 0
aidabaktybaeva
Х+3+х-4-9
<0 -x-3-x+4-9<0
2х-10<0 -2x-8<0
2x<10 -2x<8 (*(-1)
x<2 2x>-8
(-
∞;2) x>-4
(-4;+∞)
0 votes
Thanks 0
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Answers & Comments
Verified answer
1)x<-3-x-3-x+4≤9
-2x≤9-1
-2x≤8
x≥-4
-4≤x<-3
2)-3≤x≤4
x+3-x+4≤9
0≤9-7
0≤2
-3≤x≤4
3)x>4
x+3+x-4≤9
2x≤9+1
2x≤10
x≤5
4<x≤5
x∈[-4;5]
2х-10<0 -2x-8<0
2x<10 -2x<8 (*(-1)
x<2 2x>-8
(-∞;2) x>-4
(-4;+∞)